Finding the Fourth Proportional to 77,299.92, 106,654.68 and 48,995.28
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Solution
The fourth proportional to 77,299.92, 106,654.68 and 48,995.28 is: 67,601.31
Step by Step Solution
- Step 1: Write the proportion equation
77,299.92 : 106,654.68 = 48,995.28 : x - Step 2: Convert to fraction form
77,299.92/106,654.68 = 48,995.28/x - Step 3: Cross multiply
77,299.92x = 106,654.68 × 48,995.28 - Step 4: Simplify right side
77,299.92x = 5,225,575,909.91 - Step 5: Solve for x
x = 5,225,575,909.91/77,299.92 - Step 6: Final answer
x = 67,601.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.